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2. Filigree concrete - Wikipedia

   en.wikipedia.org/wiki/Filigree_concrete

   The Filigree Wideslab method is a process for construction of concrete floor decks from two interconnected concrete placements, one precast in a factory, and the other done in the field. The method was developed during the late 1960s by Harry H. Wise as a more efficient and economic construction process than conventional cast-in-place technologies.

3. Arching or compressive membrane action in reinforced concrete ...

   en.wikipedia.org/wiki/Arching_or_Compressive...

   The derivation of the maximum arching moment of resistance of laterally restrained concrete bridge deck slabs utilised Rankin's [21] idealised elastic-plastic stress-strain criterion for concrete, valid for concrete cylinder strengths up to at least 70N/mm 2, which he had derived on the basis of Hognestad, Hanson and McHenry's [23] ultimate ...

4. Nils F. Ambursen - Wikipedia

   en.wikipedia.org/wiki/Nils_F._Ambursen

   Working for the B. F. Sturtevant Company in Hyde Park, Boston, Massachusetts, in 1903, Ambursen developed an innovative concrete slab and buttress dam for an industrial client in Theresa, New York. [ 3 ] [ 4 ] Ambursen's design was for a buttress dam requiring minimal buttress thickness in which the upstream part is a relatively thin flat slab ...

5. Voided biaxial slab - Wikipedia

   en.wikipedia.org/wiki/Voided_biaxial_slab

   Concrete is poured around these plastic forms to create internal voids in the slab A voided biaxial slab installation in Turkey. Voided biaxial slabs, sometimes called biaxial slabs or voided slabs, are a type of reinforced concrete slab which incorporates air-filled voids to reduce the volume of concrete required.

6. Sulfate attack in concrete and mortar - Wikipedia

   en.wikipedia.org/wiki/Sulfate_attack_in_concrete...

   Oxidation of pyrite in clay formations in contact with concrete – this produces sulfuric acid which reacts with concrete. Bacterial activity in sewers – anaerobic sulfate reduction at work in the organic-rich sludges accumulated under water in the conduits produces hydrogen sulfide gas (H 2 S).

7. Damp proofing - Wikipedia

   en.wikipedia.org/wiki/Damp_proofing

   Integral damp proofing in concrete involves adding materials to the concrete mix to make the concrete itself impermeable. [ 4 ] Surface suppressant coating with thin water proof materials such as epoxy resin for resistance to non-pressurized moisture such as rain water or a coating of cement sprayed on such as shotcrete which can resist water ...